Word: skeletonema
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...scientific voyeurism taught him little of practical value, and Dr. Fujinaga continued to spy on his prawns. After testing countless kinds of marine microorganisms, he found that during the first four days after hatching, larval kuruma prawns eat only microscopic Skeletonema costatum, a kind of diatom. When he learned how to grow his own Skeletonema in glass-covered tanks, his prawns survived their infancy. But Dr. Fujinaga could not manage to keep them alive longer than that...
...financed by fisheries companies, Dr. Fujinaga set up a pilot prawn ranch in abandoned salt-evaporation ponds at Iku-shima on Shikoku Island. He now has 30 employees, and the place is jumping with prawns. The tiny just-hatched kurumas are coddled in indoor tanks and eat yellowish-brown Skeletonema plankton that have been grown in filtered sea water doped with chemicals. Other kinds of plankton, also specially cultured, carry them through the next stage. When they are one-quarter-inch long, they graduate to outdoor tanks and are fed clam eggs and larvae or brine-shrimp eggs. Then they...
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